Subjects with the presence of any skin condition that would interfere with the diagnosis or assessment of acne vulgaris. Such conditions include, but are not limited to the following: auto immune disease, rosacea; seborrheic dermatitis; perioral dermatitis; corticosteroid-induced acne; carcinoid syndrome; mastocytosis; acneform eruptions caused by make-up, medication, facial psoriasis and facial eczema, squamous cell carcinoma, steroid folliculitis, or bacterial folliculitis).